Antenna for radios



June 12, 1928. 1,673,458

B. R. JONES ANTENNA FOR RADIOS Filed Nov. 22, 1926 INVENTOR Bur/e R (IO/I65 ATTORNEY Patented June 12, 1928.

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BURLE n. aronns, ormunsn; OKLAHOMA; nssrenon OFE'ONELHALF- 'ro enonen'ni LEssLnY, or TULSA, omnAHoMnt I v VANTENNAEOR-RADES.

Application filed .Novemher My invention relates; to radio receiving loop typeof construction. i

The principal,

to provide a simple and compactarrange ment of antenna inductancejmeans inadevicethat is sightly in appearanceand-jaiiords a maximumof inductance-With theuseof a minimum amount of wire. If accomplish.

this object by mounting aninductance coil,

within: a, bell-shaped housing and in predetermined relation; therewith, the. device, toia int ether.

being positively sensitive waves.

means for increasing the capacity of 'thede vice for inductance. This result arr 1ves, as

the description will disclose, by providingan L0 antenna unit equippedwith a shelf1or platform on which a telephone. instrument or other aerial agent may be positioned as sup plement to. the inductance capacity of the antenna. Such a device may appropriately be displayed in a room with the radio receiving instrument, constitutes an easily portable antenna, may quickly be associated with an available aerial agent; and'with these ad vantages has a high degree of efficiency as an antenna. Obvious variations of the method of positioning the aerial agent in inductive adjacency to the antenna may be provided as desired, such as hooks on the antenna unit.

In the drawings:

Fig. 1 is a perspective view of the are tenna showing same connected to a radio receiver.

Fig. 2 is a sectional perspective view of the antenna.

Fig. 3 is a detail insulator clamp.

Fig. 4 is a detail perspective view of the inductance coil.

Fig. 5 is a detail perspective view of the insulator plug and connectors.

Fig. 6 is a detail perspective view of the support plate. 7

Referring in detail to the drawings 1 designates an antenna comprising a housing 2 and the parts enclosed, the housing consisting of a bell-shaped member 3 having perspectlve view of the bject .of my invention is A further advantageof my invention resides in its adaptability to. (Jo-operation with 22, 926. Seria1,IIo..149,925.

a .fla't top 4' and at back-turned .1i1;- 5 on its antennae, and especially to an antenna of "the.

lower edge, andfafplatefi whichlservesias closure. for, the mouth of the bell-shaped memberfi, the plate having a disk like por tion 7 which is slightly convexfor the. P111? pose ofQafiording greater rigidity.

The plate 6; has a downwardly. turned. flange 8fon its outer edgev adapted, for: ens 6e gagementin the groove formed between the. back-turned lip 5 of the bell-shaped member 3,andfthe wall ofthis .n emben, Theplata 6 hasannpwardly and inwardl ,extendiugl conical portion 9.,and a] further, upwardly." (:5 extending vertical portion forming, aQcOllar 10, theopening in which collar is designated: asv11., The collar 10 hasoppositelydisposed slots,,12 whereby the. collaris permitted to-i be contracted upon the application of clamp 7n ring 13 provided with clamping screw 14.

"An .induction .coil 15. is provided comprisinga tubulailmember 16of such dimensions that it .will ffit snuglyonthebase oftheconi; caL ruons. -o;t .the platefi cont-act rthe 'i flattop 4 of thebell-s'haped member 3; a conductor 17 preferably of wire wound on the tubular member 16 and having the terminals 18, below, and 19, above, these being respectively connected with the lower and so the upper ends of the coil. The lower terminal 18 is connected with the housing by means of the screw 14 which attaches the terminal to theclamp that embraces the col- 1ar'10 of the plate 6. The upper terminal 19 is attached to a connector bar 20 which is horizontally spaced from the walls of the coil 15 inwardly thereof and which is molded in an insulator plug 21 adapted to be embraced by the collar 10 of plate 6 and eX- tending downwardly between the inward faces of the'conical portion 9 of the said plate. The plug 21 and the connector bar embedded therein with its attached terminal 19, as may be seen in Fig. 2, are spaced from the flat top 4 of the housing 2. The plug is provided with a threaded opening 22 in its lower end adapted to engage the upper end of leg 23 of the base 24.

The arrangement described and illustrated 1 provides an antenna unit which may be of any desired design for ornamental purposes.

In the assembly of the parts the clamp ring 13 is placed on the collar 10 and the terminal 18 of the inductance coil 15 is attached to the clamp by means of the screw 14. The insulator plug 21 is then inserted in the opening 11 of the collar 10 and the clamp is tightened to hold the plug in fixed position and to assure its stability as the supportin element for the unit. The terminal 19 is then attached to the upper end of the connector bar 20, thus completing the assembly of parts on the plate 6. The plate 6 carrying the elements referred to is then placed Within the bell-shaped member 3, the pre-assembly condition of which is indicated by the dotted lines in Fig. 2. The plate 6 is adjusted Within the bell-shaped member so that the upper end of the coil 15 contacts the inner face of the flat top 4 of the bellshaped member The lip 5 of the bellshaped member 3 is then crimped inwardly, enclosing the depending flange 8 of plate 6 and so completing the assembly of the antenna unit. The unit is then attached to the base by means of the co-operation of the threaded portion of the plug 21 with the leg 23. A cord 25 is provided and attached to the depending end of connector bar 20, this bar being as described, connected with the upper terminal 19 of the inductance coil. The cord 25 is led to connection With radio 26 and the device is in condition for operation.

The device will operate with improved efiiciency over ordinary simple types of antennae. Its inductance may be increased by the placing of a telephone instrument 27 on the flat top 4 or by the bringing of other available aerial agents into contiguity with the antenna unit.

What I claim and desire to secure by Letters Patent is:

1. In an antenna for radio, a structure comprising a metal housing having a dome and a lower closure member, an inductance coil positioned Within the housing and having a tubular body engaged with the housing, the tubular body providing the aerial terminal of the coil, an insulator plug carrying a bar, the radio receiver terminal connected with said bar, the insulator plug supporting the housing, and a standard engaged 1 with the plug and supporting the antenna.

2. An antenna for radio comprising a base, a leg carried by the base, an insulator carried by the leg, a housing, means for clamping the housing to the insulator, an m connecting the coil With the housing and a radio receiver.

In testimony Whereot I affix my signature.

' BURLE R. JONES. 

